I believe that Putin is thinking it through right now. I think that the incursions into Turkey were intentional and were designed to lord it over Turkey. Obviously, that was a miscalculation, a blunder. But, there are good signs. Putin is now saying that he will cooperate with the West to help defeat ISIS. That is the right policy for Russia.
Dictators are usually removed by military coops. Either their own nations or anothers.
Hussein's deposing will be no different.